601909090901 has 8 divisors (see below), whose sum is σ = 604122732480. Its totient is φ = 599696060832.

The previous prime is 601909090891. The next prime is 601909090907. The reversal of 601909090901 is 109090909106.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 601909090901 - 2²⁶ = 601841982037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601909090907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868336 + ... + 2166678.

It is an arithmetic number, because the mean of its divisors is an integer number (75515341560).

Almost surely, 2^601909090901 is an apocalyptic number.

It is an amenable number.

601909090901 is a deficient number, since it is larger than the sum of its proper divisors (2213641579).

601909090901 is a wasteful number, since it uses less digits than its factorization.

601909090901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305755.

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 601909090901 in words is "six hundred one billion, nine hundred nine million, ninety thousand, nine hundred one".